Dry blend "Veegum" T and "Kelzan." Add to the water slowly, agitating continually until smooth. Add Part B and stir slowly until uniform. Dissolve the sodium hydroxide in water. Add Part C slowly to the other components. Mix until uniform. Aerosol package: Concentrate 80%; Propellant 12/114, 30/70 205. upright, spray oven surface from a distance of 9-12 in. Allow foam to work for 10-20 min. Wipe clean with wet cloth or sponge.